What all would i have to do to put a vtec head on my d15B7 to make it vtec and what could go wrong? ( What vtec head would work on my B7?)

U can swap a d16z6 head on to it and wire the vtec n u got another 30ish hp. Prly the best thng u can do

30 hp is high, more like 10-15 with IHE and tune 20ish. You need a D16z6 or D16y8 head, head bolts, head gasket, all sensor, P28 ECU, wire in Vtec sensors. If done correctly it will run like stock and be reliable, very easy swap to do. There is a bit more to the swap though. Google search Mini Me swap to find all the info you need. Oh and this is a non Vtec forum, you will have more luck getting the info you need on Hondaswap forum or HondaCivic forum.